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Segment Information - Income Tax Expense (Benefit) Related to Exited Business (Details) - Reconciling items - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Information: Income tax expense (benefit) |  |  |
Change in fair value of funds withheld embedded derivative | $ 94.0 | $ (228.0) | $ 767.1
Net realized capital gains (losses) on funds withheld assets | 18.4 | 34.6 | 157.4
Strategic review costs and impacts |  | (0.9) | 70.3
Amortization of reinsurance loss | (123.8) | (14.4) | (12.0)
Other impacts of reinsured business | 29.0 | (29.4) | (26.4)
Total income tax expense (benefit) related to exited business | $ 17.6 | $ (238.1) | $ 956.4

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- Definition The tax effect of the amount pertaining to amortization of reinsurance gain (loss). + References No definition available. + Details
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- Definition The tax effect of the amount of change in fair value of funds withheld embedded derivative. + References No definition available. + Details
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- Definition The tax effect of the amount of realized capital gains (losses) on funds withheld assets. + References No definition available. + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to exited business. + References No definition available. + Details
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- Definition The tax effect of the amount of decrease in pre-tax income due to other impacts of reinsured business. + References No definition available. + Details
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